Power Supply

The power supply with AC adapter shown in Figure 1 enables you to quickly charge your phone battery. To use the adapter, plug it into a wall outlet, and insert the connector into the base of your Cisco Unified Wireless IP Phone 7920 or to the back of the desktop charger.

Note You can use the phone while you are charging the battery.

Figure 1 Power Supply

Table 3 provides approximate battery charging times for the two battery types and power supply configurations. You can check the battery charging state on the phone display.

.

Table 3 Battery Charging Times with Power Supply Configurations

Battery Type

Power Supply Connected to Phone

Power Supply Connected to Desktop Charger

Standard

4.5 hours

4.5 hours

Extended

6 hours

6 hours

Caution Use only Cisco supplied power supplies for the Cisco Unified Wireless IP Phone 7920.

Desktop Charger

You can use the desktop charger, as shown in Figure 2, to charge both the phone battery installed in the phone and a spare battery at the same time.

Note The desktop charger does not include the power supply which must be ordered separately.

Note You can insert and charge both the phone and the spare battery at the same time, or you can insert and charge them separately.

Step 4 To use the Cisco Unified 7920 Configuration Utility to import or export settings while charging the Cisco Unified Wireless IP Phone 7920 and the battery, connect the desktop charger to your computer with the standard USB A-type to B-type cable.

Note Place the desktop charger on a table or desk where you can easily lift the phone up and out of the desktop charger cradle. If the charger is placed on a high shelf, it is difficult to see how to insert or remove the phone properly and you might damage the connection.

Figure 2 Desktop Charger

1

Upper compartment—For phone

4

AC adapter—Plugs into wall outlet

2

Lower compartment—For spare battery

5

LED indicator—Indicates charging status

3

USB A-type to B-type cable—Connects phone to PC

The LED indicator in Figure 2, turns red when the battery is charging. The indicator turns green when the battery is charged. Check the LED for charging state of the phone or battery.

Table 4 provides the approximate charging times for the standard battery with these desktop charger configurations.

Table 4 Battery Charging Times for Desktop Charger

Desktop Charger Configuration

Charging Times

Standard Battery

Extended Battery

Battery only

4.5 hours

6 hours

Battery installed in the phone with phone powered on

4.5 hours

6 hours

Battery installed in the phone (powered on) and a spare battery

4.5 hours

6 hours

Multi-Charger

The multi-charger, as shown in Figure 3, can charge up to six phones and up to six batteries at the same time. You can place the multi-charger on a desk or mount it on the wall to save space.

Standard Wired Earbud

The standard wired earbud, shown in Figure 6, has a 2.5 mm, 3-band/4connector plug and is designed for indoor and outdoor use with the Cisco UnifiedWireless IP Phone 7920.

Figure 6 Standard Wired Earbud

Note For Australia and New Zealand, the Cisco supplied earbud for the Cisco Unified Wireless IP Phone 7920 is not supported. Contact your sales representative for assistance.

Cisco 7920 Configuration Utility CD and USB Cables

The Cisco 7920 Configuration Utility enables system administrators to save settings to configuration files for exporting from a computer to the Cisco Unified Wireless IP Phone 7920 and to upgrade firmware on the phone. The Cisco 7920 Configuration Utility also enables system administrators to import configuration files from the Cisco Unified Wireless IP Phone 7920 to the computer. Refer to the Cisco Unified Wireless IP Phone 7920 Administration Guidefor Cisco Unified CallManager for information about using the Cisco 7920 Configuration Utility.

The computer and the Cisco Unified Wireless IP Phone 7920 are connected by using a USB cable. Two USB cables are shipped with the Cisco 7920 Configuration Utility CD. Refer to the following sections for more information about the USB cables.

USB Cables

Phone to A-Type 48-Inch USB Cable

You can use the phone to A-type 48-inch USB cable, as shown in Figure 7, to connect your Cisco Unified Wireless IP Phone 7920 to a computer that is running the Cisco 7920 Configuration Utility.

Figure 7 Phone to A-Type 48-Inch USB Cable

Standard A-Type to B-Type 48-Inch USB Cable

You can use the standard A-type to B-type 48-inch USB cable, as shown in Figure 8, to connect your computer to a Cisco Unified Wireless IP Phone 7920 that is in the desktop charger. You can charge your Cisco Unified Wireless IP Phone 7920 while simultaneously transmitting data between the Cisco Unified Wireless IP Phone 7920 and your computer that is running the Cisco 7920 Configuration Utility. (See Figure 2.)

Guidelines for Using Accessories and the Phone

•Use only chargers, batteries, and accessories that are approved by the Cisco Unified Wireless IP Phone 7920 manufacturer.

•Do not adhere a clip to the back of the phone or insert a clip between the phone and battery cover because it can damage the battery.

•Use a protective cover case to shield the phone from moisture, dust, hair, grease, and other contaminants that might get on your hands. For example, in Healthcare environments, where phones must be cleaned with sterilizing wipes, you must use a protective cover case to prevent moisture damage to the phone.

•Use a protective cover case in environments where the phone might be bumped or dropped, such as manufacturing or warehouse environments.

•When disconnecting the power cord of any accessory, grasp and pull the plug. Do not pull the cord.

•Clean the phone only with a soft dry cloth. Do not use moist wipes or cleaning powders that might damage the phone.

Note Using unapproved accessories, not protecting the phone from moisture, contaminants, and hard impacts can invalidate the one-year hardware warranty on the phone.

Related Documentation

The following publications are companion documents to the Cisco Unified Wireless IP Phone 7920 AccessoryGuide:

Product Documentation DVD

The Product Documentation DVD is a library of technical product documentation on a portable medium. The DVD enables you to access installation, configuration, and command guides for Cisco hardware and software products. With the DVD, you have access to the HTML documentation and some of the PDF files found on the Cisco website at this URL:

The Product Documentation DVD is created and released regularly. DVDs are available singly or by subscription. Registered Cisco.com users can order a Product Documentation DVD (product number DOC-DOCDVD= or DOC-DOCDVD=SUB) from Cisco Marketplace at the Product Documentation Store at this URL:

To see security advisories, security notices, and security responses as they are updated in real time, you can subscribe to the Product Security Incident Response Team Really Simple Syndication (PSIRT RSS) feed. Information about how to subscribe to the PSIRT RSS feed is found at this URL:

Reporting Security Problems in Cisco Products

Cisco is committed to delivering secure products. We test our products internally before we release them, and we strive to correct all vulnerabilities quickly. If you think that you have identified a vulnerability in a Cisco product, contact PSIRT:

An emergency is either a condition in which a system is under active attack or a condition for which a severe and urgent security vulnerability should be reported. All other conditions are considered nonemergencies.

Tip We encourage you to use Pretty Good Privacy (PGP) or a compatible product (for example, GnuPG) to encrypt any sensitive information that you send to Cisco. PSIRT can work with information that has been encrypted with PGP versions 2.x through 9.x.

Never use a revoked encryption key or an expired encryption key. The correct public key to use in your correspondence with PSIRT is the one linked in the Contact Summary section of the Security Vulnerability Policy page at this URL:

If you do not have or use PGP, contact PSIRT to find other means of encrypting the data before sending any sensitive material.

Product Alerts and Field Notices

Modifications to or updates about Cisco products are announced in Cisco Product Alerts and Cisco Field Notices. You can receive Cisco Product Alerts and Cisco Field Notices by using the Product Alert Tool on Cisco.com. This tool enables you to create a profile and choose those products for which you want to receive information.

Obtaining Technical Assistance

Cisco Technical Support provides 24-hour-a-day award-winning technical assistance. The Cisco Technical Support & Documentation website on Cisco.com features extensive online support resources. In addition, if you have a valid Cisco service contract, Cisco Technical Assistance Center (TAC) engineers provide telephone support. If you do not have a valid Cisco service contract, contact your reseller.

Cisco Technical Support & Documentation Website

The Cisco Technical Support & Documentation website provides online documents and tools for troubleshooting and resolving technical issues with Cisco products and technologies. The website is available 24 hours a day at this URL:

Access to all tools on the Cisco Technical Support & Documentation website requires a Cisco.com user ID and password. If you have a valid service contract but do not have a user ID or password, you can register at this URL:

Note Use the Cisco Product Identification Tool to locate your product serial number before submitting a request for service online or by phone. You can access this tool from the Cisco Technical Support & Documentation website by clicking the Tools & Resources link, clicking the All Tools (A-Z) tab, and then choosing Cisco Product Identification Tool from the alphabetical list. This tool offers three search options: by product ID or model name; by tree view; or, for certain products, by copying and pasting show command output. Search results show an illustration of your product with the serial number label location highlighted. Locate the serial number label on your product and record the information before placing a service call.

Tip Displaying and Searching on Cisco.com

If you suspect that the browser is not refreshing a web page, force the browser to update the web page by holding down the Ctrl key while pressing F5.

To find technical information, narrow your search to look in technical documentation, not the entire Cisco.com website. On the Cisco.com home page, click the Advanced Search link under the Search box and then click the Technical Support & Documentation radio button.

To provide feedback about the Cisco.com website or a particular technical document, click Contacts & Feedback at the top of any Cisco.com web page.

Submitting a Service Request

Using the online TAC Service Request Tool is the fastest way to open S3 and S4 service requests. (S3 and S4 service requests are those in which your network is minimally impaired or for which you require product information.) After you describe your situation, the TAC Service Request Tool provides recommended solutions. If your issue is not resolved using the recommended resources, your service request is assigned to a Cisco engineer. The TAC Service Request Tool is located at this URL:

For S1 or S2 service requests, or if you do not have Internet access, contact the Cisco TAC by telephone. (S1 or S2 service requests are those in which your production network is down or severely degraded.) Cisco engineers are assigned immediately to S1 and S2 service requests to help keep your business operations running smoothly.

To open a service request by telephone, use one of the following numbers:

Definitions of Service Request Severity

To ensure that all service requests are reported in a standard format, Cisco has established severity definitions.

Severity 1 (S1)—An existing network is "down" or there is a critical impact to your business operations. You and Cisco will commit all necessary resources around the clock to resolve the situation.

Severity 2 (S2)—Operation of an existing network is severely degraded, or significant aspects of your business operations are negatively affected by inadequate performance of Cisco products. You and Cisco will commit full-time resources during normal business hours to resolve the situation.

Severity 3 (S3)—Operational performance of the network is impaired while most business operations remain functional. You and Cisco will commit resources during normal business hours to restore service to satisfactory levels.

Severity 4 (S4)—You require information or assistance with Cisco product capabilities, installation, or configuration. There is little or no effect on your business operations.

Obtaining Additional Publications and Information

Information about Cisco products, technologies, and network solutions is available from various online and printed sources.

•The Cisco Online Subscription Center is the website where you can sign up for a variety of Cisco e-mail newsletters and other communications. Create a profile and then select the subscriptions that you would like to receive. To visit the Cisco Online Subscription Center, go to this URL:

•The Cisco Product Quick Reference Guide is a handy, compact reference tool that includes brief product overviews, key features, sample part numbers, and abbreviated technical specifications for many Cisco products that are sold through channel partners. It is updated twice a year and includes the latest Cisco channel product offerings. To order and find out more about the Cisco Product Quick Reference Guide, go to this URL:

•Cisco Press publishes a wide range of general networking, training, and certification titles. Both new and experienced users will benefit from these publications. For current Cisco Press titles and other information, go to Cisco Press at this URL:

•Internet Protocol Journal is a quarterly journal published by Cisco Systems for engineering professionals involved in designing, developing, and operating public and private internets and intranets. You can access the Internet Protocol Journal at this URL:

•Cisco Support Community is an interactive website where networking professionals share questions, suggestions, and information about networking products and technologies with Cisco experts and other networking professionals. Join a discussion at this URL:

•"What's New in Cisco Documentation" is an online publication that provides information about the latest documentation releases for Cisco products. Updated monthly, this online publication is organized by product category to direct you quickly to the documentation for your products. You can view the latest release of "What's New in Cisco Documentation" at this URL:

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